1. Display color: Multi-color LED display clock, P2.5, luminous point color: 1R1G1B;

2. Communication interface: RJ45, Ethernet time synchronization; Compatible with wireless methods such as WIFI, LTE-4G, and IOT for time synchronization and management as per user requirements;
3. *Equipped with data security authentication, peer time calibration, and management functions; The clock authenticates the time server via TCP/IP protocol. If authentication is successful, it can read the time from the time server. If authentication fails, the time server is deemed illegal and unsafe, and the clock cannot perform time synchronization;
4. *Supports three different time source methods: (1) NTP time server synchronization; (2) Time and information management system software synchronization; (3) Both NTP time server and time and information management system software synchronization;
5. *Features power on/off functionality, executing display and communication switch actions based on scheduled power on/off times;
6. *Equipped with countdown functionality, displaying normal time, countdown start time, countdown duration, and exam subject during the countdown period;
7. *Supports time and text information display functionality, allowing configuration of text content, display start and end times, display frequency, etc., via software;
8. Supports different time display modes, configurable or operable via remote control, including:
1) Year, month, day, hour, minute, second, weekday + temperature and humidity;
2) Year, month, day, hour, minute, weekday + temperature and humidity;
3) Year, month, day, hour, minute, second, weekday + temperature and humidity + prompt message;
4) Exam display interface;
5) Recording and broadcasting display interface;
6) Countdown display interface;
9. Capable of normal time synchronization and other functions without relying on the time and information management system software;
10. Features Ethernet configuration functionality, using dedicated software system to configure local network parameters, time server IP, size, display mode, product category, etc.;
11. Supports display of exam instruction text information;
12. Allows configuration of displayed images and display areas via backend software;
13. Equipped with power-off memory function; automatically switches to internal clock state during external power outage or network disconnection;
14. Brightness ≥600 cd/m2, pixel pitch 2.5MM; Minimum Chinese character display ≥16*16 dots;
15. Viewing angle (2θ—) horizontal +140 degrees; vertical 45°/65°; Drive method 1/16 (constant current drive);
16. Exterior frame uses black cold-rolled box, one-time molding, acrylic panel, aesthetically pleasing and elegant. The clock face is treated with anti-glare coating, ensuring no reflection under fluorescent lights. All components are high-reliability, long-life parts, designed and manufactured for maintenance-free operation;
17. Independent timing accuracy: ≤±0.05 seconds/day;
18. Power supply: 220VAC±10%, 50Hz;
19. Environmental requirements: -15℃ to +55℃, 10% to 95% RH;